| Official Name: | Nether Winchendon |
| Static Image Name: | The Church of St Nicholas - Nether Winchendon - geograph.org.uk - 450106.jpg |
| Static Image Caption: | St Nicholas' parish church |
| Coordinates: | 51.8038°N -0.9385°W |
| Os Grid Reference: | SP731122 |
| Label Position: | top |
| Population: | 165 |
| Population Ref: | (2011 Census)[1] |
| Civil Parish: | Nether Winchendon |
| Unitary England: | Buckinghamshire |
| Lieutenancy England: | Buckinghamshire |
| Region: | South East England |
| Country: | England |
| Constituency Westminster: | Buckingham |
| Post Town: | Aylesbury |
| Postcode District: | HP18 |
| Postcode Area: | HP |
| Dial Code: | 01844 |
| Website: | Nether Winchendon Parish Meeting |
Nether Winchendon or Lower Winchendon is a village and civil parish in Buckinghamshire, England. It is near the county boundary with Oxfordshire, about 5.5miles west of Aylesbury and 2.5miles north of Haddenham. In 2011 the parish had a population of 165. From 1974 to 2020 it was in Aylesbury Vale district.
The toponym "Winchendon" is derived from the Old English for "hill at a bend". The Domesday Book of 1086 records Winchendon as Wincandone.
Nether Winchendon House,[2] a manor house in Nether Winchendon, built on the site of an Augustinian priory that was a daughter house of Notley Abbey in Long Crendon. Jasper Tudor, Duke of Bedford bought and largely remodelled the priory. The house and gardens are now open to the public and the house is noted for its interior. Nether Winchendon House also hosts weddings.
Nether Winchendon has been a frequent setting for television and film production, including two Midsomer Murders episodes (as different houses); Lady Pat's house in Forever Green and the BBC series Chef! starring Lenny Henry. St Nicholas' parish church was the setting for a baptism scene in the film Bridget Jones: The Edge of Reason, but can be seen only in the deleted scenes section of the DVD.